OzVMX Forum

Marque Remarks => Spaniards (Bultaco, Ossa, Montesa etc) => Topic started by: lms6201 on November 09, 2009, 03:26:22 pm

Title: mikuni 36mm jetting for a 250 monty enduro
Post by: lms6201 on November 09, 2009, 03:26:22 pm

for a h6  54m 1977 , i,ve got the 36mm carby and a selection of jets and slides , i also have a tm34 mikuni if anyone has an opinion on how that would go ?  thanks

Title: Re: mikuni 36mm jetting for a 250 monty enduro
Post by: felix7 on November 18, 2009, 11:01:46 pm

I posted this a while back regarding my Mk8 250 Blly. Theoretically should be the same or damn close. The info came from: Mikuni maestro Ian Williams has been extremely helpful. He went through his records and reckons this is about the combo I should have in my 250:
 - VM34, 210 main, 35 pilot, 2.5 cutaway slide, 6DP1 needle, Q-5 needle jet and 2.0 airjet.
- Felix

Title: Re: mikuni 36mm jetting for a 250 monty enduro
Post by: cappra on November 19, 2009, 01:46:33 am

VM34. Baseline jetting for 250cc Montesa's.
Main jet-250
Pilot jet-35
Needle-6FJ6
Needle jet-159Q6
Slide-2.5
remove and toss the airjet.

Title: Re: mikuni 36mm jetting for a 250 monty enduro
Post by: norm17 on November 19, 2009, 08:36:09 am

If you go tp either of Luke1961's Skydrive sites there is a Sudco Mikuni Manual that we posted there recently.
Whilst it won't address specifically a Montessa 250 it does give baseline specs for various bikes plus detailed listings of just what jet/needle/etc is richer/leaner etc because they are not logically sequential.

PE   http://cid-407d7ef0965d3991.skydrive.live.com/browse.aspx/Pure%20Enduro
RM   http://cid-407d7ef0965d3991.skydrive.live.com/browse.aspx/Racing%20Model


The above Link is given direct in a posting called Sudco Mikuni Manual in Tech Talk from November 12 2009

Norm